Top 350+ Solved Turbine MCQ Questions Answer
Q. Design of Pelton wheel means the following data is to be determined.
a. Width of buckets
b. Depth of buckets
c. Number of buckets
d. All of the mentioned
Q. The width of buckets of Pelton wheel is
a. 2 times diameter of jet
b. 3 times diameter of jet
c. 4 times diameter of jet
d. 5 times diameter of jet
Q. The depth of buckets of Pelton wheel
a. 1.2 times diameter of jet
b. 1.3 times diameter of jet
c. 1.4 times diameter of jet
d. 1.5 times diameter of jet
Q. The ratio of pitch diameter of Pelton wheel to diameter of jet is known as
a. Speed ratio
b. Jet ratio
c. Velocity ratio
d. Co-efficient of velocity
Q. Find the diameter of jet D, if jet ratio m and diameter of jet d are given as 10 and 125mm.
a. 1.25 meters
b. 1.5 meters
c. 2 meters
d. 1.2 meters
Q. The number of buckets of Pelton wheel is 25 and diameter of runner is 1.5meters then calculate diameter of jet is
a. 80mm
b. 85mm
c. 90mm
d. 82mm
Q. Number of buckets on runner of Pelton wheel is given by expression? (D-diameter of runner and d- diameter of jet)
a. 15 + D/2d
b. 15 + 3D/2d
c. 15 + D/d
d. 15 + 2D/d
Q. is obtained by dividing total rate of flow through the turbine by rate of flow through single jet.
a. Number of jets
b. Diameter of jets
c. Velocity of jets
d. Speed ratio
Q. If diameter of jet is 85mm and diameter of runner is 1.5 meter then calculate width of buckets.
a. 400mm
b. 500mm
c. 420mm
d. 425mm
Q. If diameter of jet is 85mm and diameter of runner is 1.5 meter then depth of buckets is
a. 100mm
b. 105mm
c. 106mm
d. 102mm
Q. Radial flow reaction turbines are those turbines in which water flows
a. Radial direction
b. Axial direction
c. Tangential direction
d. All of the mentioned
Q. Main parts of radial flow reaction turbines are
a. Casing
b. Guide mechanism
c. Draft tube
d. All of the mentioned
Q. Radial flow reaction turbines contain spiral casing which area
a. Remains constant
b. Gradually decreases
c. Gradually increases
d. Suddenly decreases